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Quoted from "Kyle" Quoted from "emt837046@aol.com" Is the water turned on? I assume so because it was working last week and I changed nothing (other than unplugging the controller to plug the washing machine in). To be honest though, I'm not even sure how to check. Get this figured out right away. You need to know where any shut-off valves are, and that they are set correctly to allow watering.

Is there a rain detector wired into the system? Have you performed a resistance check of the zone wiring? That gives you both a continuity check and an indication of the solenoid 'health' - one ohmmeter lead to the system common, and one lead to the zone terminal. Older ESP controllers can get problems with the central dial. It turns and moves into position just fine, but it might be fluky as far as actual continuity goes. You should remove the excess dirt from the valve box, so you have a view ...

Try to evaluate the well on its own, just as a water source, and not what drives a sprinkler system. If you have to add some shut-off valves and outlet tees, consider it the cost of being able to know what you have, instead of having to guess at it. This advice comes from the word "cavitated" that you posted, which suggests that the water source may have changed in some way. Water tables can drop lower, to a point where it is beyond the ability of a pump to bring water to the surface, at least i...

You might swap solenoids with a working zone, just to confirm or rule out it being a solenoid issue. If you have a brass valve body with an adapter threaded into it, then it is usually easier to replace the entire adapter.

Buy some 24VAC relays, and you can manage to connect the dots. If you still can't get there, work up a diagram showing valves and wiring, and upload it to the internet, and then post it here, using the "insert image" option.

There may be a pressure regulating valve in the pathway of the water leading to the system, and that will give readings that differ from those systems with unregulated supplies. Besides a pressure gauge, there is the water meter itself as a measuring device. Many of them today have digital readouts that will show you the precise flow in a zone. Should there be a blockage between the zone valve and the heads, the flow will be less than for the same heads on a working zone.

If the zone is only three heads, it wouldn't cost a fortune just to replace them, assuming you haven't yet done that. And do get the pressure gauge and take some readings. The too-high/too-low pressure readings on the upstream side of the zone valves will help narrow down zone problems for anyone without professional repair experience.

the Irritrol valve is descended from a company named Richdel that was a pioneer in plastic valves, that was an acquisition of a company later bougt by Toro - Richdel valves rarely if ever gave trouble right out of the box, which is a track record other leading brands do not enjoy - if you don't have the gauge for testing the system, your money might as well go to the Irritrol valve

Try using an Irritrol 2713APR antisyphon valve, if you want a "do this and job done" solution, sight unseen. But first, try some advanced diagnostics. You need a pressure gauge connected somewhere upstream of your zone valves. Open a zone you know works properly. You can do this for all the zones, and log the pressure measurements. When you get to a zone where the heads aren't popping up, the pressure gauge reading will help you know if the zone valve is the problem. Broken pipe(s) will result i...

Let the controller run awhile. It might have some self-correcting ability for the time of day. I personally never worried about the precise time the controller displayed, since the lawn didn't benefit by accurate-to-the-second controllers. Lawns did just fine with motorized controllers you couldn't set to exact minutes, let alone seconds.

It could be as simple as a bad toggle switch. You will have to diagnose this yourself with the aid of a multimeter. The controller is dead simple, so just find the bad part(s) However, you might best be served by looking for a replacement. These show up on eBay a lot, as systems get modernized. Note that there are many variations on this clock, so other model numbers can be a match. Read the descriptions carefully.

For the sake of reader comprehension, it must be noted that the question and most recent comment are from unknown locations. In states with cold winters, nearly all residential systems are installed with poly pipe pulled into the ground with a special machine known as a vibratory plow, so that no trench digging is required. This method puts a valve manifold near the point where the water supply exits the house. In warmer areas, where trenches are dug to lay in PVC pipe, zone valves may be scatte...